Stopper



Patented Apr. 28, 1936 UNITED STATES STOPPER Harry M. Sacks, Philadelphia, Pa., assignor to General Health Corporation, Philadelphia, Pa., a corporation oi Delaware Application September 25, 1933, Serial No. 690,896 In Canada September 25, 1933 1 Claim.

This invention relates to rubber bottle stoppers.

The main object of the invention is to provide a stopper for bottles which is leak-proof, long lasting, and which can easily be put on the bottle and taken ofi.

Another object of the invention is to provide a stopper having a skirt portion which flts around the neck of the bottle, a cylindrical insert which fits in the neck of the bottle and a. stretchable l0 thinned wall area above the skirt portion for allowing the skirt portion to be bent upwardly.

With these and other objects in view which may be incident to my improvements, the invention consists in the parts and combinations to be hereinafter set forth and claimed, with the understanding that the several necessary elements comprising my invention may be varied in construction, proportions and arrangements, without departing from the spirit and scope of the appended claim.

In order to make my invention more clearly understood, I have shown in the accompanying drawing means for carrying the invention into practical effect, without limiting the improvements in their useful applications to the particular constructions, .which for the purpose of explanation have been made the subject 01 illustration.

In the drawing:

Figure 1 is an edge view of the stopper.

Figure 2 is a bottom view thereof.

Figure 3 is a section on line 3 3 of Figure 1 showing the stopper applied to the neck of a' bottle. 8

Figure 4- is a similar view as Figure 3 but showing a modifled form of the stopper.

Figure 5 is an edge view of another modifled form of the stopper.

Figure 6 is a section on line 6-6 01- Figure 5 showing the stopper applied to the neck of a bottle.

Figure 7 is a bottom view of the stopper.

Rei.'erring now to the drawing in detail, numeral I designates the body of the nipple, 2

the cylindrical insert which flts in the neck a of the bottle and 4 the skirt portion which'flts around the neck of the bottle. The body comprises a relatively thick flat top portion 5 and leading from the ceiling of the top portion down to the skirt portion is a relatively thin and flexible wall area 6 which is gradually thickened where it meets the said skirt portion. The purpose of this thinned wall area is to provide i'or a greater amount of flexibility and thereby allow the skirt portion to be bent upwardly when applying or taking oil the stopper from the bottle. Between the thinned wall 6 and the wall 2 of the cylindrical insert is a circular chamber to accommodate the flange 1 of the bottle neck. The cy- 5' llndrical insert 2 is hollowed out as at 8 in order to allow the wall of the insert to give" when inserting it in the bottle neck.

The form of the invention shown in Figure 4 is the same as that shown in the form of the 10 invention shown in: Figures 1 to 3 with the exception that an additional seal 9 is provided to make the stopper more completely water and air tight. The seal comprises a thin circular wall curving inwardly and extending from the top ll 15 of the body of the device and having the bottom end H bear against the top edge of the bottle neck. Also a relatively wide seat I! is provided for the flange oi the bottle neck to rest on.

In the form oi the invention shown in Figures 5 20 to 7, numeral l3 designates the body of the stopp 'r comprising a top portion ll, a skirt portion I and a tapered plug IS. The wall oi the upper skirt portion is thinned as at I1, thus forming a, circular chamber l8 which is triangular in 25 section to accommodate the flange i9 01' the bottle neck. Also the thinned area of the wall oflers a means on which to readily bend the skirt portion upwardly when applying or taking on the stopper from the bottle.

While I have shown and described the preferred embodiment of my invention I wish it to be understood that I do not conflne myself to the precise details or construction herein set forth, by way of illustration, as it is apparent that many as changes and variations may be made therein, by those skilled in the art, without departing from the spirit oi the invention, or exceeding the scope of the appended claim. I

Having described myinvention, I claim: 40

In a stopper 0! the clasvdescribed, a flat top portion or relatively thick rubber, a hollow cylindrical portion extending downwardly from said top portion and adapted to' flt in the neck of a bottle, a skirt portion, a thinned wall .area be- 45 tween said top portion and skirt portion, the said thin wall bulging outwardly forming an interior circular chamber to accommodate the flange of a bottle neck, and a seal comprising a thin and resilientdnwardly curving circular wall between 50 said cylindrical portion and said thinned wall area.

HARRY M. SACKS. 

